1894217054 has 4 divisors (see below), whose sum is σ = 2841325584. Its totient is φ = 947108526.

The previous prime is 1894217047. The next prime is 1894217063. The reversal of 1894217054 is 4507124981.

It is a semiprime because it is the product of two primes.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 473554262 + ... + 473554265.

It is an arithmetic number, because the mean of its divisors is an integer number (710331396).

Almost surely, 2^1894217054 is an apocalyptic number.

1894217054 is a deficient number, since it is larger than the sum of its proper divisors (947108530).

1894217054 is an equidigital number, since it uses as much as digits as its factorization.

1894217054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 947108529.

The product of its (nonzero) digits is 80640, while the sum is 41.

The square root of 1894217054 is about 43522.6039432385. The cubic root of 1894217054 is about 1237.3044667968.

The spelling of 1894217054 in words is "one billion, eight hundred ninety-four million, two hundred seventeen thousand, fifty-four".